| Rank | Average Family Size ▼ | School District / Population |
| 1. | 4.11 | Clay County School District / 22,197 |
| 2. | 3.89 | Robertson County School District / 2,278 |
| 3. | 3.79 | Fort Knox Dependent Schools / 13,281 |
| 4. | 3.76 | Jackson Independent School District / 1,116 |
| 5. | 3.72 | Wolfe County School District / 7,315 |
| 6. | 3.69 | Owsley County School District / 4,742 |
| 7. | 3.67 | Anchorage Independent School District / 2,552 |
| 8. | 3.64 | Martin County School District / 13,138 |
| 9. | 3.61 | Fort Campbell Dependent Schools / 13,170 |
| 10. | 3.59 | Magoffin County School District / 13,294 |
| 11. | 3.52 | Breathitt County School District / 13,086 |
| 12. | 3.51 | Menifee County School District / 6,427 |
| 13. | 3.48 | Harlan County School District / 26,662 |
| 14. | 3.46 | Lawrence County School District / 15,841 |
| 15. | 3.46 | Gallatin County School District / 8,428 |
| 16. | 3.44 | Harlan Independent School District / 3,026 |
| 17. | 3.44 | Larue County School District / 14,080 |
| 18. | 3.42 | Meade County School District / 23,631 |
| 19. | 3.39 | Morgan County School District / 14,055 |
| 20. | 3.38 | Augusta Independent School District / 1,710 |
| 21. | 3.37 | Barbourville Independent School District / 2,750 |
| 22. | 3.36 | Whitley County School District / 21,716 |
| 23. | 3.36 | Silver Grove Independent School District / 1,569 |
| 24. | 3.36 | Perry County School District / 23,905 |
| 25. | 3.33 | Ohio County School District / 23,837 |
| 26. | 3.32 | Cumberland County School District / 6,931 |
| 27. | 3.31 | Pendleton County School District / 14,894 |
| 28. | 3.29 | Lewis County School District / 13,968 |
| 29. | 3.29 | Leslie County School District / 11,470 |
| 30. | 3.29 | Boone County School District / 108,757 |
| 31. | 3.28 | Garrard County School District / 16,842 |
| 32. | 3.27 | Harrison County School District / 18,761 |
| 33. | 3.27 | Webster County School District / 13,734 |
| 34. | 3.27 | Walton-Verona Independent School District / 5,966 |
| 35. | 3.26 | Beechwood Independent School District / 5,845 |
| 36. | 3.26 | Eminence Independent School District / 2,728 |
| 37. | 3.26 | Marion County School District / 19,619 |
| 38. | 3.26 | Knott County School District / 16,587 |
| 39. | 3.26 | Bracken County School District / 6,769 |
| 40. | 3.25 | Dawson Springs Independent School District / 2,653 |
| 41. | 3.25 | Estill County School District / 14,733 |
| 42. | 3.25 | Casey County School District / 15,939 |
| 43. | 3.24 | Mayfield Independent School District / 9,653 |
| 44. | 3.24 | Grant County School District / 21,025 |
| 45. | 3.23 | Monroe County School District / 11,089 |
| 46. | 3.23 | Kenton County School District / 97,081 |
| 47. | 3.23 | Newport Independent School District / 15,603 |
| 48. | 3.22 | Bell County School District / 15,935 |
| 49. | 3.22 | Powell County School District / 12,786 |
| 50. | 3.20 | Greenup County School District / 20,124 |
| 51. | 3.19 | Bardstown Independent School District / 13,166 |
| 52. | 3.19 | Covington Independent School District / 33,071 |
| 53. | 3.19 | Bath County School District / 11,565 |
| 54. | 3.19 | Hart County School District / 15,298 |
| 55. | 3.19 | Todd County School District / 12,307 |
| 56. | 3.18 | Erlanger-Elsmere Independent School District / 17,077 |
| 57. | 3.18 | Rockcastle County School District / 17,075 |
| 58. | 3.18 | Raceland-Worthington Independent School District / 4,460 |
| 59. | 3.18 | Grayson County School District / 25,540 |
| 60. | 3.17 | Elliott County School District / 7,493 |
| 61. | 3.17 | Laurel County School District / 57,210 |
| 62. | 3.17 | Montgomery County School District / 25,908 |
| 63. | 3.16 | Letcher County School District / 20,918 |
| 64. | 3.15 | Livingston County School District / 9,514 |
| 65. | 3.15 | Hancock County School District / 8,555 |
| 66. | 3.14 | McCreary County School District / 18,122 |
| 67. | 3.14 | Oldham County School District / 58,784 |
| 68. | 3.14 | Hickman County School District / 4,949 |
| 69. | 3.13 | Breckinridge County School District / 18,430 |
| 70. | 3.13 | Shelby County School District / 40,899 |
| 71. | 3.13 | Williamsburg Independent School District / 5,409 |
| 72. | 3.13 | Spencer County School District / 16,582 |
| 73. | 3.13 | Bowling Green Independent School District / 26,567 |
| 74. | 3.13 | Monticello Independent School District / 3,479 |
| 75. | 3.12 | Lee County School District / 7,865 |
| 76. | 3.12 | Bullitt County School District / 72,515 |
| 77. | 3.12 | Bellevue Independent School District / 6,006 |
| 78. | 3.12 | Fleming County School District / 14,318 |
| 79. | 3.12 | Henry County School District / 12,746 |
| 80. | 3.11 | Mercer County School District / 18,671 |
| 81. | 3.11 | Crittenden County School District / 9,313 |
| 82. | 3.11 | Knox County School District / 28,071 |
| 83. | 3.11 | Hopkins County School District / 44,233 |
| 84. | 3.11 | Jefferson County School District / 726,900 |
| 85. | 3.11 | Campbell County School District / 40,572 |
| 86. | 3.11 | Daviess County School District / 67,177 |
| 87. | 3.11 | Campbellsville Independent School District / 8,646 |
| 88. | 3.10 | Caldwell County School District / 12,934 |
| 89. | 3.10 | Simpson County School District / 17,214 |
| 90. | 3.10 | Lincoln County School District / 24,779 |
| 91. | 3.09 | Dayton Independent School District / 5,390 |
| 92. | 3.09 | Cloverport Independent School District / 1,463 |
| 93. | 3.09 | Warren County School District / 83,208 |
| 94. | 3.09 | Trimble County School District / 8,872 |
| 95. | 3.09 | Nelson County School District / 29,357 |
| 96. | 3.08 | Fort Thomas Independent School District / 16,172 |
| 97. | 3.08 | Hardin County School District / 81,479 |
| 98. | 3.08 | Johnson County School District / 19,420 |
| 99. | 3.08 | Washington County School District / 11,593 |
| 100. | 3.07 | Christian County School District / 59,508 |
| 101. | 3.07 | Henderson County School District / 45,943 |
| 102. | 3.07 | Russell Independent School District / 12,378 |
| 103. | 3.07 | Madison County School District / 75,385 |
| 104. | 3.07 | Clinton County School District / 10,161 |
| 105. | 3.06 | Green County School District / 11,377 |
| 106. | 3.06 | Carter County School District / 27,821 |
| 107. | 3.06 | Paris Independent School District / 5,781 |
| 108. | 3.06 | Union County School District / 15,077 |
| 109. | 3.06 | McLean County School District / 9,635 |
| 110. | 3.06 | Corbin Independent School District / 9,825 |
| 111. | 3.05 | Rowan County School District / 23,075 |
| 112. | 3.05 | Jessamine County School District / 47,073 |
| 113. | 3.05 | Floyd County School District / 39,949 |
| 114. | 3.04 | Barren County School District / 27,023 |
| 115. | 3.04 | Metcalfe County School District / 10,130 |
| 116. | 3.04 | Middlesboro Independent School District / 10,405 |
| 117. | 3.04 | Boyd County School District / 23,566 |
| 118. | 3.04 | Owensboro Independent School District / 28,221 |
| 119. | 3.04 | Ashland Independent School District / 22,024 |
| 120. | 3.03 | Nicholas County School District / 7,136 |
| 121. | 3.02 | Taylor County School District / 15,601 |
| 122. | 3.01 | Allen County School District / 19,688 |
| 123. | 3.01 | Southgate Independent School District / 3,704 |
| 124. | 3.00 | Logan County School District / 20,664 |
| 125. | 3.00 | Jenkins Independent School District / 3,544 |
| 126. | 2.99 | Adair County School District / 18,542 |
| 127. | 2.99 | Butler County School District / 12,763 |
| 128. | 2.99 | Graves County School District / 27,305 |
| 129. | 2.99 | Laurel County School District for East Bernstadt ISD / 945 |
| 129. | 2.99 | East Bernstadt Independent School District / 945 |
| 131. | 2.98 | Ludlow Independent School District / 4,960 |
| 132. | 2.98 | Mason County School District / 17,362 |
| 133. | 2.98 | Bourbon County School District / 14,166 |
| 134. | 2.98 | Caverna Independent School District / 5,739 |
| 135. | 2.98 | Woodford County School District / 24,523 |
| 136. | 2.97 | Fayette County School District / 288,045 |
| 137. | 2.97 | Russell County School District / 17,445 |
| 138. | 2.97 | Glasgow Independent School District / 11,826 |
| 139. | 2.96 | Fairview Independent School District / 3,740 |
| 140. | 2.96 | Carroll County School District / 10,703 |
| 141. | 2.96 | Boyle County School District / 15,009 |
| 142. | 2.96 | Anderson County School District / 21,080 |
| 143. | 2.96 | Franklin County School District / 44,319 |
| 144. | 2.95 | Scott County School District / 44,868 |
| 145. | 2.95 | Hazard Independent School District / 4,834 |
| 146. | 2.94 | Marshall County School District / 31,386 |
| 147. | 2.94 | Murray Independent School District / 10,779 |
| 148. | 2.94 | Pulaski County School District / 50,666 |
| 149. | 2.94 | Carlisle County School District / 5,126 |
| 150. | 2.93 | Muhlenberg County School District / 31,541 |
| 151. | 2.93 | Ballard County School District / 8,225 |
| 152. | 2.93 | Somerset Independent School District / 9,658 |
| 153. | 2.92 | McCracken County School District / 44,257 |
| 154. | 2.92 | Pike County School District / 58,680 |
| 155. | 2.91 | Paducah Independent School District / 20,960 |
| 156. | 2.91 | Wayne County School District / 17,237 |
| 157. | 2.91 | Clark County School District / 35,305 |
| 158. | 2.90 | Williamstown Independent School District / 3,579 |
| 159. | 2.90 | Pineville Independent School District / 2,453 |
| 160. | 2.90 | Jackson County School District / 13,560 |
| 161. | 2.89 | Frankfort Independent School District / 4,748 |
| 162. | 2.89 | Elizabethtown Independent School District / 10,536 |
| 163. | 2.87 | Owen County School District / 10,928 |
| 164. | 2.87 | Edmonson County School District / 12,086 |
| 165. | 2.86 | Calloway County School District / 25,984 |
| 166. | 2.85 | Burgin Independent School District / 2,601 |
| 167. | 2.83 | Name N/A / 3,539 |
| 168. | 2.83 | Danville Independent School District / 13,236 |
| 169. | 2.80 | Trigg County School District / 14,117 |
| 170. | 2.78 | Science Hill Independent School District / 1,738 |
| 170. | 2.78 | Pulaski County School District for Science Hill ISD / 1,738 |
| 172. | 2.78 | West Point Independent School District / 856 |
| 172. | 2.78 | Elizabethtown Independent School District for West Point ISD / 856 |
| 174. | 2.72 | Fulton Independent School District / 3,166 |
| 175. | 2.71 | Paintsville Independent School District / 3,905 |
| 176. | 2.70 | Berea Independent School District / 6,195 |
| 177. | 2.69 | Russellville Independent School District / 6,174 |
| 178. | 2.68 | Pikeville Independent School District / 6,629 |
| 179. | 2.67 | Fulton County School District / 3,692 |
| 180. | 2.40 | Lyon County School District / 8,367 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
